Mechanical horn.



J. R. IVIARS'T'CO5 MECHANlCAL HORN.

APPLICATLQN FILED ocT. 2|. 191,5.

Patented June 1-1, 1918.

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ou 4W 2 m44 onine nrnrorron JERA JldRSICO, BRGOKLYN, NEW YORK, ASSIGNOR'.10 THE SEMES- WITHINGTON GOMPANY, F CLEVELAND, OHO, A. CORPORATION 0h"19H16).

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Specincation of Letters Patent. Pwjmytdl JM@ 1119 glpjlgn applicationniet october ai, 191e. serial ne. 57,111. y

To all lwhom t may concern."

Be it lmown that ll, JERARD subject of the King of ltaly, residinBrooklyn, in the county of Kings and tate of New York, have invented newand useful improvements in Mechanical Horns, of which the following is aspecication.

R. ll/llAnSIco, a

Y This invention relates to` mechanical horns Vio and has for itsprimaryobject the provision o1" a diaphragm 1 and vibrating mechanismtherefor consisting'of a revolving element and means supporting -thesame -for free movement againstand in the presence of the diaphragm andfor causing said eleme'nt'to revolve under its own action for quite along duration after power is initially applie thereto. l A

Another object of lthe invention resides in the' provision of a vibratorwhich will include a freely revoluble shaft having. a xed striker wheelthereonand an actuating devicefreely movable axially of the shaft andprovided with means adapted to be brought into positive driving relationto the shaft on movement of the device in one direction to eiilectuallyVset the shaft' in motion and in turn causing positive movements to beimpartedy to the Vstriker wheel and then successively with its operationas a driving means for the shaft to assume a position where it will berelatively free to thereby permit the wheel and its shaft to continuerevolving by its own momentum- Another object of the inventin is torovide a mechanical sounding device inc udingx a diaphragm and revolvingmeans for operating the same, and means for supportt ing and accuratelybalancing the striker means so as to maximize its eciency andpermit thesame to be controlled manually with little exertion on part of theoperator.

- Figure 1 isa plan view of the horn.

Fig. 2 is a vertical section therethrough showing the parts on anenlarged scale.

115 actuating elements'.

l1`ig.'3 is a vertical section thiroughv the device vshowing the, matingclutch Fig. 4 isa horizontal section taken on. the lined-fdofiig. 3.* l.v The device consists of .a suitable casing 1,

provided with a vibrating diaphragm 2,"

which extends across the innerend oa horn 3. The diaphragm isprovided-at its' center atv with a threaded adjustable stud 4iwhich maybe moved with relation to the knocking surface 5 of a revolving strikerwheel 6.

The vibrating mechanism, in addition to the revolving wheel 6, includesa shaft Z to which the wheel is secured and adapted for rotationtherewith. Une end of the shaft is mounted in an adjustable bearing 11`at one Side of the casing 1, and as illustrated the opposite end of theshaft is mounted to revolve in a tubular actuating and bearing formingmember .12 which is adapted to move axially of the shaft andrespectively to and from the striker wheel. 'llhe said member 12 isfreely slidable in a xed bearing sleeve 13 which is disposeddiametrically opposite the bearing 11. The inner end of the member 12 isthreaded at 1d and connected therewith is a correspondingly threadedsupport 15 having a base dange 16 which is provided with a centralpassage 17 which receives the adjacent end of the shaft 7. The

passage 20 which is normally disposed above the clutch element 18.Mounted enteriorly of the support is a clutch element 21 having anactive lug 22 which is adapted to be presented against cne of the teethont the clutch element-18 in a manner to be hereinafter ex-v plained.'llhe lug 22 is freely movable in the passage 20; and it is maintainedby the walls' thereof-in a position to actively coact with the clutchelement 18 at the requisite time.

IThe support 15 is provided withv an annu lar Hangs 23 and bearingagainst the under side thereof are the companion branches 24.-24 of asprintl 25. This spring adjacent `its end 28 is coiled around a stud 26which is xed to the crown 27of the casing 1 so that the said spring isnormally held under tension. lin this mannenit is seen that the support15 is normall held in an elevated position and against t e adjacent-wall29 of the casing l. The shaft? is provided at one side oit the Wheel .6with a worm groove 30 which eX- tends into the tubular actuating member12 and through the' central passage 31 ci the clutch element 18. Theclutch element 13 is I forming surfaces 32 which are extended into thegroove 30.

Having described the essential details of the invention, the operationthereof is now set forth as follows: Under the action of the spring 25the clutch element 21 is normally held in an inactive positionrelatively to the clutch elementv 18 and it is observed that saidspringnormally operates to hold the tubular member 12 in an elevated position.rlhrough the fact that the thread forming surfaces 32 are extended intothe groove 30 it follows, that there is such resistance between theparts as is necessary to a normal 'retention of the clptch element 18against the ange 16 of the mentioned support 15. When it is desired, toset up vibration in the diaphragm Zit/pressure of the hand is applied'to the head-.or controlling knob 12u of the member 412 so as to movesaid member-'in the directionof the wheel 6 Aand against thefaction ofthe spring 25. In'

so doing the lug 22 of the clutch element 21 i is positively broughtinto co-acting engagement with one of the teeth of the clutch ele! inept18. As the operator continues to move the member 12 in the direction ofthe said wheel 6 the clutch element 18 will operate as in the manner ofa common nut against the worm portion of the shaft 7 and a quickrotation'of the shaft 7 will follow.4 rlhis quick or sudden rotation ofthe shaft results in the wheel 6 beingy rotated positively against thestud 4 and quick vibrations are set up in 'said diaphragm. 0n releasingpressure from the knob 12a the member 12 will automatically assume itsinitial or normal position and the wheel 6 and shaft 7 will contlnue torevolve under its own momentum for a considerable period of time andcontinue to exercise its office as a diaphragm operating element.

` The nicety in the general manner of assemblingf the various elementsof the structure results in perfectly balanced parts and the diaphragm 2may be e'eetually operated with comparatively little exertion on thepart of the operator.

By usmg the operating or power transmit-l ting member 12, as a bearingfor one end of ,the `shaft 7 and supporting from said member lnormal lyinoperative co-acting clutch elements, the shaft is adapted to revolvewith a high 4degree of efficiency. Undue friction is'avoided by suporting the shaft 7 from its ends only. l of the shaft except itsextreme ends whichextend into the bearings is free and normally out ofcontact with any of the working parts of the structure.

While' I have shown and described one principal embodiment of myinvention, lby

-`way of illustration, I' wish it to be understood that-I do not confinemyself to all the preclse details" of construction herein set forth, asmo'dicatlons, variations, or alterrecon?? the thickness of the nut andpermitting movement of the nut axially of the shaft in said chamber, anda clutch element engaging said nut in one of its positions axially ofthe shaft and disengaged from the nut in another of said axialpositions.

2. ln a horn, an 'air-vibrating member, a rotary actuator for saidvibrating member, a spiral shaft'upon which said actuator is mounted,bearings for said spiral shaft, one

of said bearings being slidable over the shaft, a pair of clutchelements carried by the sliding bearing, one of said clutch elementscapable of limited movement longitudinally 0f the shaft relatively tothe other element and adapted to engagel the other clutch element uponrelative movement in one direction, and to be disengaged therefrom uponrelative movement in the opposite direction.

3. A mechanical horn comprising, a pair of bearings, a shaft having itsextreme ends .mounted 1n said bearings, said shaft having a worm groove,one of s'aid bearings being mounted to kslide over the groove'd portionof -the shaft, mating ynormally inactive .clutch elements carried by thesliding bearing, one of said elements embracing the shaft and having aportion extending into the groove, said elements being adapted to coactwith each other so as to impart rotary movement to the shaft when saidIsliding bearing is moved in one direction over. said shaft, and adiaphragm over which the striker is adapted to revolve.

4. A mechanical horn comprising, a pair of bearings, a shaft vhavlng itsextreme ends mounted 1n said bearings, said shaft having M5' ar wormgroove, one of said bearings beingv mounted to slide over the groovedportion of the shaft, mating normally inactive clutch elements carriedby the sliding bearing, one of said elementsl embracing the shaftandhaving a portion extending into the groove, saidelements .beingadapted to co-act ,with each other so as to impart-rotary movement tothe shaft when said slidf l in bearing is `moved inone direction oversald shaft, and a diaphragm over vwhich the ilo striker is ,adapted torevolve, and means for normally holding a starting position.

5. A mechanical horn, comprising, `a pair said ,sliding bearing' ininsegni' of bearings, a having its extreme ends lili mounted in saidbearings, said shaft having a worm groove, one of s'aidbearings beingmounted to slide over the grooved portion of the shaft, matin normallyinactive clutch elements carrie by the sliding bearing, and one of saidelements embracingthe shaft and having a portion extending into thegroove, said. elements being adapted to -co-act with each other so as toimpart rotary Y 'mounted to slide over the grooved portion of the shaft,mating normally inactive vclutch elements carried by the sliding bear?ing, one of said elements'embracing the shaft and having a portionextending into the groove, said elements being adapted to coact witheach other so as to'impart rotary movement to Vthe shaft when saidsliding bearing is moved in one direction over said shaft, and adiaphragm over which the strilrer is adapted to revolve, and means fornormally holding said slidingibearing in a starting position andcomprising a spring having a terminal operatively connected with saidsliding bearing, and freely slidable thereover.

Operating mechanism forv diaphragm horns, comprising, a revolvihg shafthaving xedstriher adapted to operate against the diaphragm, andvprovided with a Worm groove, a pair of bearings normally receiving .theends of the shaft, one of said bear- ;uigs being slidab'le over the`Worm portion.

of the shaft, a ange on-the sliding/bearing, clutch element freelysupported from the angaland a clutch element normally spaced from thefirst element and adapted to be moved into engagement therewith onmovement of the sliding bearing in none direction and to separatetherefrom oninove-l ment of said bearing in an opposite direction,'and aportion formed on the hrst ele-Y ment and extending into saidwormgroove` 8. Operating mechanism for diaphra horns, comprising, varevolviirig shaft havinga fixed striker adapted to operate againstV thediaphragm, and provided With'a Worm groove, a pair of bearlngs normally'receiving the ends of the shaft, one of' said bearings being slidableover the Worin portion of the shaft, and provided with 'a dange, av

clutch element freely supported from 'the flange, and a clutchelement-,nornr ,t flange and serving thereagainst, a shaft dared toprovided with a worm groove, a guide car- 'spaced from the first elementand adapted to be moved into engagementtherevvith on movement of thesliding bearing in one direction and to separate therefrom on move-`ment of said bearing in an opposite direction, a portion formed on thefirst element and extending into'said Worin groove, and having aterminal freely slidable over said to normally hold both elementsseparated. f

9. Uperating mechanism for diaphragm horns, comprising, in combinationWith a striker and a revolving shaft'xed thereto,-

a'pair of bearings supporting the shaftfrom the ends thereof, one ofsaid bearings being slidable over the shaft,'said shaft having a Wormgroove, a clutch element carried by 'iti the sliding1 bearing and havingan internal portion extending into the Worm groove, and a set ofexternal teeth, a second yieldable clutch element carried by the same A'bearing and adapted to co-aot with said teeth, and means for normallyholding said second element normally separated from said rstelement asand fertile-purpose specied.

l0. it. mechanical horn, comprising, a casing having a diaphragm, astriker supported the strilier ried by the casing, a sliding0 membermovable throiigh the guide and rorming a bearing for one end of theshaft, a clutch slement supported by the member and-dispo vvithinthecasing and having a portion er;-

tending into the Worin groove, and .a clutch element carried by slidinglmember adapted to be advanced into coi-acting engageni'ent wwith thelirst clutch element on movement of the sliding member toward thestriker..

ll. A mechanical horn, comprising, a cas-- l o c v n l: ing having adiaphragm, striker supported. thereagainsta shaft hired to the strilrerand provided with a Worm groove, agiiide 1 carried by the casing,sliding member `movable throiigh the gif-.ide and forming a bearing forone end of "he shaft, a clutch element supported by the member and"disposed Within the casing and having a por- 1 tion extending1 into theworm groove, and a clutch element carried by the sliding'memlll@ d li

ber and adapted to be advanced into coacting engagement with the rstclutch' ele- Iment on movement of theV sliding member toward thestrilrer, and a portion threadedly connected with the sliding member andV.forifi'aing a rest for the rst clutch element. l2. mechanical horn,comprising, a

casing` having a diaphragm, ak striker slipport'ed tnereagainst.- ashaft fixed to the a-guide carried by the casing, a sliding membermovable through the guide and forming a bearing; for one end of theshaft, a clutch l2 ll striker and provided with a Worin groove,

element supported by the member ond disposed Wthin thevcasng and havingo portion extending into the worm groove, and a Clutch element carriedby the sliding member and adapted to be advanced into `c0- actingengagement with the rst clutch element on movement of the sliding membertoward the striker, and aY portion threadedly connected with the slidingmember and 10 forming ati-est forfthe irst clutch element,

l medew and a spring carried by the casing and baving a free terminaladapted to slide over said portion. l

In testimony whereof I, aiix my signature in presence "of two witnesses.

' Witnesses:

JOHN CALIZIN'RI, Gno. A. BERNE- f

